161664880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{433}}^1$

素因数の和:818

約数の個数: 80

約数和(自身を含む): 406848960

約数和(自身を除く): 245184080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 359, 433, 520, 718, 866, 1040, 1436, 1732, 1795, 2165, 2872, 3464, 3590, 4330, 4667, 5629, 5744, 6928, 7180, 8660, 9334, 11258, 14360, 17320, 18668, 22516, 23335, 28145, 28720, 34640, 37336, 45032, 46670, 56290, 74672, 90064, 93340, 112580, 155447, 186680, 225160, 310894, 373360, 450320, 621788, 777235, 1243576, 1554470, 2020811, 2487152, 3108940, 4041622, 6217880, 8083244, 10104055, 12435760, 16166488, 20208110, 32332976, 40416220, 80832440, 161664880]

約数ペア:

[(1, 161664880), (2, 80832440), (4, 40416220), (5, 32332976), (8, 20208110), (10, 16166488), (13, 12435760), (16, 10104055), (20, 8083244), (26, 6217880), (40, 4041622), (52, 3108940), (65, 2487152), (80, 2020811), (104, 1554470), (130, 1243576), (208, 777235), (260, 621788), (359, 450320), (433, 373360), (520, 310894), (718, 225160), (866, 186680), (1040, 155447), (1436, 112580), (1732, 93340), (1795, 90064), (2165, 74672), (2872, 56290), (3464, 46670), (3590, 45032), (4330, 37336), (4667, 34640), (5629, 28720), (5744, 28145), (6928, 23335), (7180, 22516), (8660, 18668), (9334, 17320), (11258, 14360)]